From the manual page
Notes:
the arrays myapp and mypetsc need NOT contain the all the integers 0 to
napp-1, that is there CAN be "holes" in the indices.
Use AOCreateBasic() or AOCreateBasicIS() if they do not have holes for
better performance.
so they are two different things. Mapping is more general but could be much
slower than basic (when basic works).
Barry
> On Aug 27, 2018, at 10:11 AM, Hapla Vaclav <[email protected]> wrote:
>
> Hello
>
> I don't understand the difference between these two (and
> AOCreate{Basic,Mapping}IS). They do the same according to docs. My guess
> would be the latter is obsolete, dating back to before multiple AOTypes were
> introduced?
>
> Maybe just AOMappingHas{Application,Petsc}Index() need to be renamed/edited
> to AOBasicHas{Application,Petsc}Index(), and then AOCreateMapping{,IS} could
> be removed?
>
> Cheers
>
> Vaclav
